An object with total mass mtotal = 17.2 kg is sitting at rest when it explodes into three pieces. one piece with mass m1 = 4.9 kg moves up and to the left at an angle of θ1 = 19° above the –x axis with a speed of v1 = 25.3 m/s. a second piece with mass m2 = 5.1 kg moves down and to the right an angle of θ2 = 24° to the right of the -y axis at a speed of v2 = 20.7 m/s. 1)what is the magnitude of the final momentum of the system (all three pieces)?

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Examine the nuclear reacti why is this classified as a nuclear reaction rather than a chemical reaction? it is not balanced. a new compound is formed. a change has occurred in a nucleus. a new element has been formed.